The tilted window for ventilation is often forgotten. The consequence: the room cools down and expensive heating energy is wasted! The automatic window closer Winflip provides a solution, and it does so without the batteries or power connection required by electric window closers! Never forget a tilted window again while still enjoying sufficient fresh air! With a simple pull on the Winflip cord, the closing mechanism is released and the window is tilted. It automatically closes after a preset duration and holds firmly with about 100 kg of force. In addition to easy self-installation, Winflip offers you many daily benefits: comfort, as the window closes by itself; no more cooled rooms = enormous energy savings; increased security, as tilted windows attract burglars; improved indoor climate; better protection against mold; and easy ventilation of hard-to-reach windows = barrier-free ventilation for children and seniors. The ventilation duration can be adjusted between 5 minutes and 5 hours, as well as the closing swing. Over 100,000 tested closing cycles ensure the highest quality. Winflip is particularly practical in all rooms where steam, odors, and stale air are generated and where the window is often forgotten after tilting: bathroom, toilet, kitchen, and utility rooms. Our tip: Save even more heating energy! Combine Winflip, for example, with the Homematic IP Smart Home System! This way, the heating in the room is reduced while ventilating. Note: This is the current, second version of the Winflip.